...And now the approved method, is to save my Visio symbols back to *.dwg/*.dxf - so SolidWorks Electrical can import and use these symbols integrating with the SWE software. I managed to do this just fine for the first few documents I imported (a valve, and an electrical control box) - now though I'm just trying to do what I was doing before...and I get the error message - 'Symbol corruption. It cannot be inserted.' So, I'm wondering if my method of importing is bad, or the files are 'actually' corrupt - which I'm having a difficult time working around.
SolidWorks Professional 2014 SP 1.0
SolidWorks Electrical 2014 SP 1.0